Why Are Americans So Sour on Biden?

The “receipt” here makes me wonder what Biden could possibly do to improve his dismal (40%) approval rating.  As suggested by the falling gas prices and by the buoying of the Dow Jones, the market seems to believe we have a grip on inflation.  We’ve also had victories in jobs, infrastructure, climate, and gun safety.   Most people believe the Justice Department is handing a terrible situation honorably and effectively.

What would impress all these Americans?  They seem to be in a bad mood?  Is it some sort of major depressive disorder on a national scale?